Protocol for a scoping review of the qualitative literature on Indigenous infant feeding experiences

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                                                                                                                                                                          BMJ Open: first published as 10.1136/bmjopen-2020-043476 on 29 January 2021. Downloaded from http://bmjopen.bmj.com/ on October 12, 2021 by guest. Protected by copyright.
                                        Protocol for a scoping review of the
                                        qualitative literature on Indigenous
                                        infant feeding experiences
                                        Hiliary Monteith ‍ ‍,1 Tracey Galloway,2 Anthony J Hanley1

To cite: Monteith H, Galloway T,        ABSTRACT
Hanley AJ. Protocol for a                                                                                 Strengths and limitations of this study
                                        Introduction Prudent infant nutrition, including exclusive
scoping review of the qualitative       breastfeeding to 6 months, is essential for optimal short-­
literature on Indigenous infant                                                                           ►► This protocol describes a rigorous search strategy
                                        term and long-­term health. Quantitative research to date
feeding experiences. BMJ Open                                                                                and methodological framework for summarising the
                                        has documented that many Indigenous communities have
2021;11:e043476. doi:10.1136/                                                                                literature that align with the research question and
bmjopen-2020-043476                     lower breastfeeding rates than the general population and
                                                                                                             include peer-­reviewed sources, as well as a grey lit-
                                        that this gap in breastfeeding initiation and maintenance
►► Prepublication history and
                                                                                                             erature search.
                                        may have an important impact on chronic disease risk
additional materials for this                                                                             ►► Selection of publications that meet the inclusion and
                                        later in life. However, there are critical knowledge gaps
paper is available online. To                                                                                exclusion criteria will be completed by two indepen-
                                        in the literature regarding factors that influence infant
view these files, please visit                                                                               dent reviewers and most inclusion/exclusion crite-
                                        feeding decisions. Qualitative research on infant feeding
the journal online (http://​dx.​doi.​                                                                        ria are only applied at screening, not at the search,
org/​10.​1136/​bmjopen-​2020-​          experiences provides a broader understanding of the
                                                                                                             augmenting the comprehensiveness of this review.
043476).                                challenges that Indigenous caregivers encounter, and
                                                                                                          ►► This review will map important findings and meth-
                                        insights provided by this approach are essential to identify
                                                                                                             odologies to provide an overview of work in this
Received 04 August 2020                 research gaps, community engagement strategies, and
Revised 07 January 2021
                                                                                                             area, guiding best practices for future projects.
                                        programme and policy development. The objective of
Accepted 13 January 2021                                                                                  ►► The topic of this review is broad and interdisciplin-
                                        this review is to summarise the qualitative literature
                                                                                                             ary; therefore, it is possible that publications only
                                        that describes breastfeeding and other infant feeding
                                                                                                             available in subject-­specific databases or websites
                                        experiences of Indigenous caregivers.
                                                                                                             may be omitted.
                                        Methods and analysis This scoping review will
                                        follow guidelines from Preferred Reporting Items for
                                        Systematic Reviews and Meta-­Analyses Extension for
                                                                                                        disproportionately affected by chronic
                                        Scoping Reviews, the Joanna Briggs Institute and the
                                        methodological framework from Arksey and O’Malley. In           diseases, including type 2 diabetes mellitus.
                                        October 2020, we will conduct an electronic database            Their heavy disease burden is compounded
                                        search using Medline, Embase, The Cumulative Index to           by socioecological factors, such as food inse-
                                        Nursing & Allied Health Literature (CINAHL), PsycINFO, and      curity, poverty, housing and water sanitation
                                        Scopus, and will focus on qualitative studies. Publications     issues.1 2 These adverse environments and
                                        that have a focus on infant feeding in Canada, the USA,         funding limitations are a direct result of the
                                        Australia and New Zealand, and the Indigenous caregiver         legacy of colonisation and they restrict the
                                        experience from the caregiver perspective, will be              ease in which Indigenous communities can
                                        included. We will conduct a grey literature search using        improve their health and well-­      being.3–5 In
                                        Indigenous Studies Portal, country-­specific browser
                                                                                                        recent years, there has been an emphasis in
                                        searches, and known government, association, and
                                                                                                        research inquiry and public health program-
                                        community websites/reports. We will map themes and
                                        concepts of the publications, including study results and
                                                                                                        ming on the contribution of these complex
© Author(s) (or their
employer(s)) 2021. Re-­use              methodologies, to identify research gaps, future directions,    interconnected factors to health disparities,
permitted under CC BY-­NC. No           challenges and best practices in this topic area.               and the increased recognition for the need
commercial re-­use. See rights          Ethics and dissemination Ethical approval is not                for multidimensional and culturally safe
and permissions. Published by                                                                           approaches to support Indigenous commu-
                                        required for this review as no unpublished primary data
BMJ.
1
                                        will be included. The results of this review will be shared     nities into the future.4 6 The health and well-­
 Nutritional Sciences, University       through peer-­reviewed publications and conference
of Toronto, Toronto, Ontario,
                                                                                                        being of Indigenous infants and children
                                        presentations. This protocol is registered through the Open     are priorities for improved health outcomes
Canada
2
 Anthropology, University of
                                        Science Framework (​osf.​io/​4su79).                            overall, as maternal and early life risk factors
Toronto, Mississauga, Ontario,                                                                          are known to have long-­term effects on health
Canada                                                                                                  later in life.7 8 Importantly, a focus on infants
 Correspondence to
                                        INTRODUCTION                                                    and children also aligns with Indigenous ways
 Dr Anthony J Hanley;                   Indigenous peoples living in Canada,                            of knowing,9 where intergenerational rela-
​anthony.​hanley@u​ toronto.​ca         the USA, Australia and New Zealand are                          tionships hold particular significance.

                                                Monteith H, et al. BMJ Open 2021;11:e043476. doi:10.1136/bmjopen-2020-043476                                          1
Open access

                                                                                                                                                 BMJ Open: first published as 10.1136/bmjopen-2020-043476 on 29 January 2021. Downloaded from http://bmjopen.bmj.com/ on October 12, 2021 by guest. Protected by copyright.
   It has been well documented that Indigenous infants
                                                                   Table 1     Eligibility criteria overview
and children disproportionately experience risk factors
that are associated with chronic diseases later in life,           Inclusion criteria                     Exclusion criteria
including high rates of overweight and obesity, food               Indigenous populations in              Work not describing
insecurity, poverty and limited quality of education.10–12         Canada, US, New Zealand                experiences from a
Optimal nutrition during infancy and childhood is an               and Australia                          caregiver’s perspective
important factor that contributes broadly to health and            Explores breastfeeding and             Work only about the
well-­being across the lifespan.13 14 A limited number of          alternative infant feeding             introduction to solid foods
previous studies of Indigenous infants have reported that          options
breastfeeding initiation and duration have important               Published in English                   No English version
protective effects on subsequent risk for type 2 diabetes          Published after 1969         Published before 1969
and adiposity7 15 16; however, breastfeeding rates are often       Qualitative or mixed methods Presentation of only
low among Indigenous mothers in developed coun-                    data                         quantitative and numerical
tries.17–19 Although quantitative studies have reported                                         data that do not describe
descriptive statistics and basic epidemiological features                                       infant feeding experiences
of breastfeeding among Indigenous mothers, many
important knowledge gaps remain. Qualitative research
decontextualises and recontextualises the deeper mean-
                                                                  other forms of milk feeding if the work describes the
ings and reasons for infant feeding experiences as
                                                                  alternative in relation to breastfeeding.
perceived by Indigenous caregivers, providing clarity
of the phenomena of interest, uncovering new under-
standing and possibly illuminating areas for further              METHODS
inquiry.20 Infant feeding initiatives must be informed by         Protocol and registration
these experiences to better address community-­specific           The protocol for this scoping review follows Preferred
concerns to effectively promote healthy infant feeding            Reporting Items for Systematic Reviews and Meta-­
behaviours, including breastfeeding, within Indigenous            Analyses guidelines adapted for scoping reviews,25 as well
communities.21–24                                                 as guidelines from the Joanna Briggs Institute Reviewer’s
                                                                  Manual26 and guidelines published in 2005 by Arksey
Rationale                                                         and O’Malley.27 The protocol is registered with the Open
To date, there are no published summaries, scoping or             Science Framework.
systematic reviews on infant feeding experiences among
Indigenous caregivers that include qualitative descrip-           Eligibility criteria
tions of barriers, stories, supports and initiatives or related   Table 1 provides an overview of the inclusion and exclu-
topics. A scoping review in this area will assist researchers     sion criteria for this scoping review. The population of
in understanding the current state of the existing liter-         focus is Indigenous peoples living in Canada, the USA,
ature, research gaps and key research priorities for              New Zealand and Australia. These countries are included
future work. This review will also summarise the qualita-         as they are developed nations that have similar legacies
tive research methodologies used in Indigenous infant             of colonisation, where western worldview is dominant,
feeding studies with the potential to clarify best research       and in which Indigenous peoples have similar health
practices, and additional methodological applications             outcomes.28 29 Infant feeding experiences are the main
to address gaps in the literature. This information may           focus for this review. Breastfeeding, as well as alternative
also result in further clarification of clinical best practices   forms of infant feeding, such as formula and cow’s milk,
for breast and alternative forms of infant feeding among          are included; however, we will exclude works that only
Indigenous populations.                                           focus on the introduction of solid foods. Breastfeeding
                                                                  compared with not breastfeeding within the same popu-
Objectives                                                        lation is the comparison considered in this review, when
The primary aim of this work is to summarise the liter-           applicable, where we consider caregiver experiences of
ature available to date that incorporates qualitative             breastfeeding compared with other infant feeding strat-
approaches to describe the breastfeeding and other infant         egies. The qualitative outcomes specific to experiences,
feeding experiences of Indigenous women residing in               perspectives and practices (including themes, descrip-
developed nations impacted by colonisation. This review           tions, open-­    ended survey responses or any answers
will include research addressing Indigenous women’s               pertaining to experience) as described from the care-
experiences from their own perspectives, as well as the           giver or others involved in caregiving will be included;
perspectives of other caregivers, including but not limited       work that only describes an outsider perspective will be
to grandmothers and fathers. In addition to literature on         excluded.
breastfeeding experiences, this review will also include             Additional inclusion criteria include: works published
literature on alternative infant feeding options, including       in the English language, grey literature and peer-­reviewed
formula feeding, complementary feeding, weaning and               journal articles, work with a focus on Indigenous groups

2                                                                 Monteith H, et al. BMJ Open 2021;11:e043476. doi:10.1136/bmjopen-2020-043476
Open access

                                                                                                                                                  BMJ Open: first published as 10.1136/bmjopen-2020-043476 on 29 January 2021. Downloaded from http://bmjopen.bmj.com/ on October 12, 2021 by guest. Protected by copyright.
within Australia, Canada, New Zealand and the USA as                           be transferred to Covidence,31 where duplicates will be
the primary population, research using qualitative or                          removed and data will be managed for the duration of
mixed methods where the infant feeding experience                              the scoping review. This will enable independent review
is described, and works published after 1969. Works                            of the literature for the reviewers/authors.
published prior to 1969 are likely to include literature that                    A minimum of two independent reviewers will be
has been archived and is therefore not feasible to review                      involved in this work from screening to inclusion. At
in detail for this review. Should there be works that do                       minimum, an additional author will assist in summarising
not clearly fit within these criteria, the two reviewers will                  the included literature and in writing the scoping review.
meet to discuss until consensus is reached. We will report
where clarity was and was not achieved and disclose why.                       Data charting process
Publications that do not involve Indigenous populations                        All data will be collected and shared using Covidence
will also be excluded.                                                         software31 to enable an independent review process. The
                                                                               software facilitates the review process through organ-
Information sources                                                            ised management of the sources, and identification of
Databases included in the initial search for this review will                  publications where reviewers are not concordant and
be Medline, Embase, CINAHL, PsycINFO, and Scopus.                              discussion may be required. If or when review decisions
These databases are selected for this review to include                        differ, an author other than the primary two reviewers
a broad range of research as our topic overlaps with                           will provide a third vote to achieve a review decision. All
various fields, including Anthropology, Health Sciences,                       titles and abstracts will be screened by two reviewers at the
Sociology and Indigenous Studies. Following this initial                       screening stage and all eligible sources will move to a full-­
search, the grey literature will be explored for additional                    text review, also completed by two independent reviewers.
relevant documents.
  The grey literature search will concentrate on resources
                                                                               Data items
and publications available from Indigenous Studies Portal
                                                                               Literature included in this scoping review must be from
and a variety of Indigenous focused websites, govern-
                                                                               qualitative or mixed-­method studies. Articles that report
ments, organisations and book chapters. A thorough
                                                                               on survey data will be included if the questions reported
Google search will be conducted with each of the country-­
                                                                               on are based on infant feeding experience (perspectives,
specific Google versions (eg, Google AU) and the first 10
                                                                               perceptions and practices), whether the survey questions
pages of results will be included in the search. Indigenous
                                                                               were open ended or not. Data are considered as any
scholars and non-­Indigenous scholars who work in this
                                                                               information, such as quotations, codes, themes and open-­
area of study in Canada, Australia, USA and New Zealand
                                                                               ended survey responses as first, second and/or third
will be contacted with the aim of including as many appli-
                                                                               order constructs, describing infant feeding experiences.
cable grey literature sources as needed to be as sensitive
                                                                                  Experience is defined as ‘practical knowledge, skill, or
in our search as possible. The Canadian Agency for Drugs
                                                                               practice derived from direct observation of or participa-
and Technologies in Health’s ‘Grey Matters’ checklist30
                                                                               tion in events or in a particular activity (​Merriam-­​Webster.​
will also be consulted.
                                                                               com32)’. In this work, experience refers to the reported
  Given the limitations to reproducibility and compre-
                                                                               knowledge, skill or practice from direct observation or
hensiveness in a grey literature search, transparency is
                                                                               participation in infant feeding.
particularly important. Therefore, the reporting strategy
                                                                                  The term “Indigenous peoples” has not officially been
used for the grey literature search will include all websites
                                                                               defined by the United Nations given the importance of
(URL and title) visited, the dates of searches, the search
                                                                               enabling Indigenous peoples to self-­determine their iden-
terms used to reach such websites and used within those
                                                                               tity and that a specific definition is not required for the
websites, and the number of items screened. We will report
                                                                               protection of Indigenous rights.3 A working definition is
both the sources of relevant content, as well as when no
                                                                               provided by the José R. Martínez Cobo Study and is as
relevant content is found on a website or from a specific
                                                                               follows:
search.26 We will also search book chapters and confer-
ence proceedings in the following databases: Medline,                            Indigenous communities, peoples and nations are
Embase, CINAHL, PsycINFO, Scopus and Indigenous                                  those which, having a historical continuity with pre-­
Studies Portal. The initial database search and exporting                        invasion and pre-­colonial societies that developed on
of abstracts and references will take place from 20 to 27                        their territories, consider themselves distinct from
October 2020.                                                                    other sectors of the societies now prevailing on those
  The detailed proposed search strategy can be found as                          territories, or parts of them. They form at present
online supplemental appendix 1.                                                  non-­dominant sectors of society and are determined
                                                                                 to preserve, develop and transmit to future gener-
Selection of sources of evidence                                                 ations their ancestral territories, and their ethnic
All literature references will be exported to Zotero soft-                       identity, as the basis of their continued existence as
ware (Corporation for Digital Scholarship, Virginia)                             peoples, in accordance with their own cultural pat-
and saved. The titles, abstracts and references will then                        terns, social institutions and legal system.33

Monteith H, et al. BMJ Open 2021;11:e043476. doi:10.1136/bmjopen-2020-043476                                                                 3
Open access

                                                                                                                                                             BMJ Open: first published as 10.1136/bmjopen-2020-043476 on 29 January 2021. Downloaded from http://bmjopen.bmj.com/ on October 12, 2021 by guest. Protected by copyright.
  In Canada, Indigenous groups include Inuit, Métis,             no such review exists to date. This is an important knowl-
and First Nations, including any of the over 600 recog-          edge gap given the significant role that infant feeding
nised First Nations. In Australia, this includes Aboriginal      plays in Indigenous health and well-­being, and disease
and Torres Straight Islanders, in New Zealand, the Maori         prevention. This scoping review will summarise the liter-
people, in the USA, Native American peoples and Alaska           ature to date and highlight any important gaps that exist
Natives.3                                                        to guide research priorities in the future. It is anticipated
  Breastfeeding is a form of infant/early childhood              that this review will also summarise the methodologies
nutrition using breast milk. In this scoping review, breast-     used to date, providing guidance for future research,
feeding as well as any other form of infant feeding such         highlighting best practices and/or gaps in how data have
as formula feeding, cow’s milk administration, bottle            been collected.
feeding, expressed milk feeding, milk bank feeding, wet
nurse feeding and others are included so long as the work        Acknowledgements The authors would like to thank our Research Librarian,
                                                                 Glyneva Bradley-­Ridout, at the University of Toronto, for her guidance in the scoping
describes the breastfeeding or absence of breastfeeding          review process.
experience. For those works that only describe an alter-
                                                                 Contributors HM contributed to the drafting and editing of the protocol and
native method to breastfeeding, the work must describe           oversaw revisions. TG provided feedback on the structure of the manuscript and
that method in relation to breastfeeding (ie, Why breast-        the search strategy. AH contributed to the introduction and methods and was
feeding was not engaged etc).                                    extensively involved in editing the manuscript. All authors approved the final
                                                                 manuscript.
Synthesis of results                                             Funding This research received no specific grant from any funding agency in
As previously mentioned, Covidence software31 will be            the public, commercial or not-­for-­profit sectors. TG is supported by the Canadian
                                                                 Institutes of Health Research, Fund Number 147826. HM is supported by an Ontario
used to manage the literature and selection process.             Graduate Scholarship and the following University of Toronto (U of T) scholarships: a
Once the records have been screened and full-­text arti-         Banting and Best Diabetes Centre Scholarship, a Department of Nutritional Sciences
cles have been reviewed, studies that meet the inclusion         Loblaw Food as Medicine Award, the Dr. Bernard Lau Memorial Scholarship (B):
criteria will be retained. This literature will be synthesised   Graduate Bursary, the Al and Hannah Perly Graduate Student Scholarship, and the
                                                                 Peterborough K.M. Hunter Graduate Scholarship.
based on charting of results and thematic analysis. This
                                                                 Competing interests None declared.
process of synthesising the results will be completed by
the primary author with the feedback and review of the           Patient and public involvement statement Patients or the public were not
                                                                 involved in the design, or conduct, or reporting, or dissemination plans of this
second and third authors. The results will focus on the          research.
themes, quotations, conclusions and other interpreta-
                                                                 Patient consent for publication Not required.
tions related to infant feeding experiences of Indigenous
                                                                 Ethics approval As this review involves material previously published or in the
caregivers, as well as a synopsis of the methodologies
                                                                 public domain, ethical approval is not required; however, this review is specific
and theories used to support the work. Two steps will be         to Indigenous groups and therefore, it is important to consider data sovereignty
used to present the findings: (1) a figure highlighting          and ethics in the analysis and interpretation of results. The methodologies of
the number of studies at each stage of the search and (2)        the included works will be considered within this context, and the reviewers will
                                                                 validate results with an Indigenous scholar and/or community member prior to
a written analysis of the primary outcomes. Qualitative
                                                                 publication.
evidence synthesis can have several challenges; therefore,
                                                                 Provenance and peer review Not commissioned; externally peer reviewed.
detailed documentation will be important for the analyt-
ical process, including decision-­making rationale through       Supplemental material This content has been supplied by the author(s). It has
                                                                 not been vetted by BMJ Publishing Group Limited (BMJ) and may not have been
mind mapping and/or charting.34 The final results will be        peer-­reviewed. Any opinions or recommendations discussed are solely those
validated by a researcher in the field and an Indigenous         of the author(s) and are not endorsed by BMJ. BMJ disclaims all liability and
community member with lived experience.                          responsibility arising from any reliance placed on the content. Where the content
   Validation of sources will be conducted using a test set      includes any translated material, BMJ does not warrant the accuracy and reliability
                                                                 of the translations (including but not limited to local regulations, clinical guidelines,
of preidentified relevant publications that are expected         terminology, drug names and drug dosages), and is not responsible for any error
to be captured using the database search terms. After the        and/or omissions arising from translation and adaptation or otherwise.
first database search is complete, we will check to see if       Open access This is an open access article distributed in accordance with the
these publications are included in our strategy. If they         Creative Commons Attribution Non Commercial (CC BY-­NC 4.0) license, which
are, this will indicate that our search was likely compre-       permits others to distribute, remix, adapt, build upon this work non-­commercially,
                                                                 and license their derivative works on different terms, provided the original work is
hensive, if they are not included, we will investigate
                                                                 properly cited, appropriate credit is given, any changes made indicated, and the use
why, report this information, and make the appropriate           is non-­commercial. See: http://​creativecommons.​org/​licenses/​by-​nc/​4.​0/.
changes to the search strategy prior to searching the
remaining databases.                                             ORCID iD
                                                                 Hiliary Monteith http://​orcid.​org/​0000-​0002-​7123-​5910
   This paper describes the protocol for a scoping review
of peer reviewed journal articles and grey literature
on the topic of qualitative research on infant feeding
experiences of Indigenous caregivers living in Canada,
Australia, the USA and New Zealand. There is a need to           REFERENCES
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4                                                                Monteith H, et al. BMJ Open 2021;11:e043476. doi:10.1136/bmjopen-2020-043476
Open access

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Monteith H, et al. BMJ Open 2021;11:e043476. doi:10.1136/bmjopen-2020-043476                                                                           5
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